| Most common failures | No# failures |
|---|
| Parking brake: efficiency below requirements |3.7.B.7| | 295 |
| Rear parking brake recording little or no effort | 168 |
| Headlamp aim out of alignment | 135 |
| Brake pipe excessively corroded | 85 |
| Windscreen wiper does not clear the windscreen effectively | 81 |
| Registration plate lamp issues | 68 |
| Service brake: efficiency below requirements |3.7.B.7| | 57 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 46 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 38 |
| Horn not working |1.6.2a| | 36 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 35 |
| Rear brake binding | 34 |
| Nearside Stop lamp not working |1.2.1b| | 33 |
| Registration plate issues | 33 |
| Parking brake lever has no reserve travel |3.1.6b| | 33 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 32 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 30 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 27 |
| Front brake disc in such a condition that it is seriously weakened | 26 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 25 |
| Offside Stop lamp not working |1.2.1b| | 23 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 20 |
| Brakes imbalanced across an axle | 20 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 18 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 17 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 15 |
| Nearside Rear Stop lamp not working |1.2.1b| | 14 |
| Offside Headlamp not working on main beam |1.7.5a| | 14 |
| Battery insecure |1.9.1| | 13 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 11 |
| Offside Rear Stop lamp not working |1.2.1b| | 9 |
| Nearside Headlamp not working on main beam |1.7.5a| | 9 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 9 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 9 |
| Offside Side repeater not working |1.4.A.2c| | 9 |
| Centre Stop lamp not working |1.2.1b| | 8 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 8 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 8 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Windscreen has damage | 8 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 7 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 7 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 7 |
| Offside Front brake disc excessively pitted |3.5.1h| | 7 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Windscreen wiper blade insecure | 7 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 7 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 7 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 7 |
| Rear brake disc in such a condition that it is seriously weakened | 7 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 6 |
| Brake hose excessively deteriorated | 6 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 6 |
| Emissions not tested |7.0| | 6 |
| Rear Mechanical brake component has restricted free movement | 6 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 6 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 6 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 5 |
| Rear brake application uneven | 5 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 5 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 5 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 5 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 5 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 5 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 4 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 4 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 4 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 4 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 4 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 4 |
| Nearside Front Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 4 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 4 |
| Main beam `tell-tale` not working |1.7.4c| | 4 |
| Front brake application uneven | 4 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 4 |
| Nearside Headlamp aim not tested |1.8.A.1c| | 4 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 4 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Nearside Rear Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 3 |
| Stop lamp not working |1.2.1b| | 3 |
| Centre Stop lamp has less than 50% of the light sources illuminating |1.2.1b| | 3 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |
| Parking brake not fitted on at least two wheels |3.1.1| | 3 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Obligatory mirror insecure |8.1.1| | 3 |
| Nearside Side repeater not working |1.4.A.2c| | 3 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 3 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 3 |
| Mechanical brake component has restricted free movement | 3 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Windscreen washer not working | 3 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 3 |
| rear parking |secondary| brakes imbalanced | 3 |
| Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |